1 Explain that a population pyramid shows the age and sex structure of a population. 2  Point to the horizontal bars, which show the percentage (or the absolute number) of males and females in each age group. 3  Have students interpret the chart.
1 A small-to medium-capacity dehumidifier (11-25 pints) for a living room can run around $100-$250 or more, depending on size and features such as a humidistat to set the desired humidity, auto-shut-off when the tank's full, energy efficiency and quiet operation.
The portable Comfort-Aire 70 Pint dehumidifier is designed to efficiently and quietly remove up to 70 pints per day of moisture from the air. This large capacity dehumidifier gets big jobs done, but is still housed in a compact, sleek cabinet on durable casters that rolls easily from room to room..